MATERIALS & DESIGN
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2024
·
IF 7.6
Yuanping Xu,Renkun Zhang,Jiatai Sun,Ding Zhang,Qiuying Zhao,Jinjun Duan,Lu Yang
Along with the explosive utilization of intelligent and bionic robotics, the rise of somatosensory system with excellent flexibility and multiple biological sensing characteristic emerges as a substantial crux of this domain. Herein, we propose a flexible high-performance multi-mode sensor for real-time proximity–pressure–temperature perception based on a monolithic sensing unit with fingerprint-like hierarchical architecture. The monolithic sensing unit, primarily constituted by a double-permeable ionic liquids/Multi-walled nanotubes conductive network, demonstrates dual-functionality in detecting pressure and temperature. Making use of the further synergy of rational topographical architecture engineering and feasible decoupling algorithm construction, extraordinary progress in sensing performances for both pressure and temperature are attained with negligible mutual interferences. Additionally, the sensor is capable of switching to touchless mode to detect objects at distance up to 200 mm, validating its remarkable proximity sensing ability. The multifunctional nature of sensor is further substantiated through its integration with a robotic hand, highlighting its practical applicability in advanced robotic systems.
研究领域:
机器人技术
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材料科学
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生物仿生学
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产品关联
DOI
高影响因子
JOURNAL OF FLUORESCENCE
·
2025
·
IF 3.1
Wang Lubiao,Zhang Weiwei,Wu Linfang,Li Feng,Wang Mengyu
Although Rhodamine 6G (R6G) has previously been considered insensitive to pH and stress, with no established applications in sensing these specific parameters, this article presents a breakthrough by re-evaluating its potential as active materials for temperature, pH, and stress sensing. This breakthrough is achieved by employing “balance center” instead of peak maximum or mean wavelength for characterizing the spectral emission band. To verify the improvement, R6G/resin composite samples were prepared. Then the balance center among all the spectral characteristics ensured the most precise identification of the fluorescence band shifts caused by any environmental changes onto the samples. Sensitivities of the prototype sensors with balance center output were calibrated as 0.0653(3) nm/°C in the range of 20 ~ 60 °C, 0.339(8) nm/pH in the pH range of 5.71 ~ 9.44, and − 0.63(2) nm/MPa (equivalently 18 cm -1 /MPa) in the stress range of 0.07 ~ 1.43 MPa, respectively. Corresponding resolutions of the sensing systems were determined as 0.15 °C, 0.18 pH, and 0.03 MPa. These example sensors can be utilized in cytobiology research, demonstrating the potential for extensive sensing applications with a wide range of other fluorescent dyes.
研究领域:
分析化学
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传感器
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荧光光谱学
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材料科学
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生物医学工程
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产品关联
DOI
PubMed
高影响因子
Advanced Materials Technologies
·
2018
·Vol. 4
·期 3
·1800338
·
IF 4.622
Nan Nan,Jianxin He,Xiaolu You,Xianqiang Sun,Yuman Zhou,Kun Qi,Weili Shao,Fan Liu,Yanyan Chu,Bin Ding
The development of highly sensitive, stretchable, and wearable electronic skin with multimodal mechanical-sensing performance is of great research value for applications in health monitoring, and wearable electronic devices. In this work, a fabric-like sensor with high flexibility and weavability that could detect the mechanical forces induced by pressure, strain, and flexion is designed. The fabric-like sensor is woven by composite yarns (GCNF@ECYs) formed by winding graphene oxide-doped polyacrylonitrile nanofiber yarns with in situ polymerized conductive polypyrrole on elastic yarns. The hierarchical structure of the fabric ranged from the macroscopic yarn to the submicron-scale fibers to the nanometer-scale particles as well as the wrapped structure constructed by winding conductive nanofiber yarn on elastic yarn. This offers more conductive pathways, larger deformation space, and multimodal mechanical-sensing capabilities. The GCNF@ECY sensor unit has high sensitivity (the gauge factor was ≈68), wide pressure-sensing range, excellent cycling stability, and good repeatability (over 10 000 cycles). The sensor can detect human respiration, facial expressions, pulse monitoring, and a full range of human motion. Moreover, the fabric sensor can be easily woven into textiles to produce electronic textiles with great potential in wearable human health monitoring electronics devices.
研究领域:
材料科学
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生物医学工程
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智能纺织品
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产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2024
·
IF 8
Ke Wu,Lulu Guo,Wei Wang,Zhimin Yang,Haishun Liu
Humidity-temperature dual-functional sensors show great demand in healthcare and archaeology, requiring sensors with high sensitivity, high resolution and high stability. In this work, utilizing the post-coordination strategy, the uncoordinated N atoms in MOF-303 were used as the metal chelate sites to chelate CuCl 2 , and due to the accordion-like morphology, the obtained material shows potential in humidity sensing and temperature sensing. The CuCl 2 -MOF-303 based sensor shows whole range humidity sensing with response of 11.4 at 33 % RH and 56,700 at 95 % RH, 1 % RH of resolution and good long-term stability (>90 days), and excellent temperature sensing performance of high sensitivity (–3.3 %/°C), high linearity (R 2 >0.99) and high resolution (0.3 °C) in the temperature range of 35–38 °C. Furthermore, the application of sensor in healthcare, noncontact sensing and information transmission is verified. This study provides a preliminary exploration for the application of MOFs in humidity-temperature dual-functional sensors.
研究领域:
材料科学
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传感器技术
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生物医学工程
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产品关联
DOI
高影响因子
SENSORS AND ACTUATORS A-PHYSICAL
·
2022
·
IF 4.291
Baohui Zhang,Zhiqiong Li,Chong Li,Min Li,Chen Fu,Ran Tao,Xian-hu Zha,Honglang Li,Jingting Luo
This paper demonstrates chemi-resistive type and QCM ammonia sensors based on Ti 3 C 2 T x MXene with surface engineering. The morphology and structure composition of Ti 3 C 2 T x MXene were completely tested by XRD, SEM, TEM and Raman. The ammonia sensing performance of Ti 3 C 2 T x MXene sensors at room temperature were systematically studied. The QCM sensors show better performance towards ammonia than chemi-resistor sensors. The Ti 3 C 2 T x -S QCM sensor possesses quite sensitivity (49 Hz@100 ppb), high response/recovery capability (33 s/58 s) and good selectivity . XPS was introduced for the surface element status for the potential ammonia adsorption mechanism. It can be mainly related to for lowest average potential for reaction of Ti-S and the additional absorption towards the product nitric oxides enhancing the frequency shift by absorption mass increasing. This work confirms that surface engineering of Ti 3 C 2 T x MXene to be effective method for enhancing gas sensing performance, and the sensor shows potential application for low concentration ammonia sensing.
研究领域:
材料科学
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传感器技术
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Chiyu Fu,Kai Wang,Wenyang Tang,Azadeh Nilghaz,Christopher Hurren,Xungai Wang,Weilin Xu,Bin Su,Zhigang Xia
Soft actuators, particularly pneumatic artificial muscles (PAMs), have been widely applied to construct soft robotics owing to their superiorities of inherent compliance, lightweight, and high force density. However, it is still challenging to endow the PAMs with sensing capabilities towards unknown and complex environments due to their compliant mechanism and system. Herein, inspired by the skeletal muscle and skin, a novel multi-sensorized pneumatic artificial muscle yarn (mPAMy) is fabricated for multimodal proprioceptive sensing by a combination of textile braiding technology and hierarchical manufacturing method. The results and finite-element analysis reveal that the soft mPAMy have the endowed sensing capabilities towards diverse forces, including self-contraction, strain and vertical pressure. The mPAMy can detect force changes ranged from 0 N to 14 N by the yarn relative resistance change from 0 to 14.0%. Contractile sensing exhibits an increased range of resistance change (0–20.1%) compared with force sensing (0–14.0%), resulting in a greater resolution of 0.34% pressure to present change in resistance. In addition, the strain of mPAMy ranged from 0 to 57% can be stably detected. The excellent and durability pressure sensing merits of mPAMy can be ascribed from the change in resistance due to the PPy layer fracture. Furthermore, in several proof-of-concept attempts, the prepared mPAMy successfully detected precise signals of human motion and provided effective feedback during actuation. This approach opens a reliable strategy for PAMs towards multimodal sensing strategies in the healthcare, transportation and wearable electronics.
研究领域:
软体机器人
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智能材料
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可穿戴电子
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产品关联
DOI
高影响因子
Light-Science & Applications
·
2025
·Vol. 14
·期 1
·1-14
·
IF 23.4
Cai Junhu,Zhang Xiang,Chen Yu,Lai Wenzong,Ye Yun,Xu Sheng,Yan Qun,Guo Tailiang,Luo Jiajun,Chen Enguo
Multifunctional materials have attracted tremendous attention in intelligent and interactive devices. However, achieving multi-dimensional sensing capabilities with the same perovskite quantum dot (PQD) material is still in its infancy, with some considering it currently challenging and even unattainable. Drawing inspiration from neurons, a novel multifunctional CsPbBr 3 /PDMS nanosphere is devised to sense humidity, temperature, and pressure simultaneously with unique interactive responses. The carefully engineered polydimethylsiloxane (PDMS) shell enables the reversible activity of the core CsPbBr 3 , serving a dual role similar to dendrites in conveying and evaluating external stimuli with high sensitivity. Molecular dynamics analysis reveals that the PDMS shell with proper pore density enhances the conductivity in water and heat, imparting CsPbBr 3 with sensitive but reversible properties. By tailoring the crosslinking density of the PDMS shell, nanospheres can surprisingly show customized sensitivity and reversible responses to different level of stimuli, achieving over 95% accuracy in multi-dimensional and wide-range sensing. The regular pressure-sensitive property, discovered for the first time, is attributed to the regular morphology of the nanosphere, the inherent low rigidity of the PDMS shell, and the uniform distribution of the CsPbBr 3 core material in combination. This study breaks away from conventional design paradigms of perovskite core-shell materials by customizing the cross-linked density of the shell material. The reversible response mechanism of nanospheres with gradient shell density is deeply explored in response to environmental stimuli, which offers fresh insights into multi-dimensional sensing and interactive display applications.
研究领域:
材料科学
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传感器技术
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分子动力学
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产品关联
DOI
PubMed
高影响因子
RSC Advances
·
2024
·Vol. 14
·期 10
·6865-6873
·
IF 3.9
Hongjie Wang,Jilun Guan,Mei He,Yanqiu Zhu,Fangchao Cheng
Flexible sensors have promising applications in the fields of health monitoring and artificial intelligence, which have attracted much attention from researchers. However, the design and manufacture of sensors with multiple sensing functions (like simultaneously having both temperature and pressure sensing capabilities) still present a significant challenge. Here, an ionic thermoelectric sensor for synchronous temperature and pressure sensing was developed on the basis of a carbon microtubes (CMTs)/potassium chloride (KCl)/gelatin composite consisting of gelatin as the polymer matrix, CMTs as the conductive material and KCl as the ion source. The designed CMTs/KCl/gelatin composite with the good ductility (830%) and flexibility can achieve a Seebeck coefficient of 4 mV K−1 and a dual stimulus responsiveness to pressure and temperature. In addition, not only the movement of the human body (e.g., fingers, arms), but also the temperature difference between the human body and the environment, were able to be monitored by the designed CMTs/KCl/gelatin sensors. This study provides a novel strategy for the design and preparation of high-performance flexible sensors by utilizing ion-gel thermoelectric materials and promotes the research of temperature and pressure sensing technologies.
研究领域:
材料科学
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生物医学工程
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产品关联
DOI
PubMed
高影响因子
Advanced Composites and Hybrid Materials
·
2024
·Vol. 7
·期 5
·1-11
·
IF 23.2
Wen Xiaohong,Zhao Zengcai,Chen Yuchang,Shan Xinzhi,Zhao Xuefeng,Gao Xiumin,Zhuang Songlin
Multifunctional integrated flexible electronic skin (e-skin) is the essential medium for information exchange between humans and machines. Especially, the proximity/pressure/strain sensing has become a technological goal for various emerging wearable electronic devices, such as biomonitoring devices, smart electronics, augmented reality, and prosthetics. Herein, a stretchable hybrid electronic network-based e-skin is presented, fabricated by embedding 3D hollow MXene spheres/Ag NWs hybrid nanocomposite into PDMS, which can effectively avoid the electrode falling off due to stress concentration. This e-skin works in noncontact mode (proximity-negative capacitance) and contact mode (pressure-positive capacitance and strain-resistance) for multiplex detection of random external force stimuli without mutual interference. The macroscopic physical structure of stretchable electrodes and the microscopic hybrid three-dimensional conductive network jointly contribute to the good sensing performance of the device. This work provides an effective and universal strategy for the application of wearable intelligent electronic products that demand noncontact interaction and multimodal tactile perception.
研究领域:
材料科学
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生物医学工程
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电子工程
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DOI
高影响因子
Nano-Micro Letters
·
2022
·Vol. 14
·期 1
·1-14
·
IF 23.655
Yang Zijie,Lv Siyuan,Zhang Yueying,Wang Jing,Jiang Li,Jia Xiaoteng,Wang Chenguang,Yan Xu,Sun Peng,Duan Yu,Liu Fangmeng,Lu Geyu
3D porous crumpled MXene spheres were synthesized by ultrasonic spray pyrolysis technology.
All-MXene transient sensors utilizing porous crumpled MXene sphere as sensing material and MXene films as electrodes were developed, which achieved excellent gas/pressure sensing performance.
Both gas and pressure sensors can achieve rapid and controllable degradation in medical-grade H 2 O 2 (2%) within 6 h.
研究领域:
材料科学
·
传感器技术
·
医学工程
✓ 已验证
DOI
高影响因子
TALANTA
·
2025
·
IF 6.1
Shiji Liu,Liang Shuai,Qian Zhu,Lei Cao,Feng Gu,Lanlan Fan,Shixian Xiong
The rapid advancement of human-machine interaction (HMI), the Internet of Things (IoTs), and artificial intelligence (AI) has imposed greater demands on the ambient temperature wearable performance of sensors. In this study, the Fe 3+ modified bilayers polyaniline (PANI) flexible room temperature ammonia sensor is prepared by all-aerosol-jet-printed. The increased protonation degree of the PANI film produced by this method was elucidated through analysis of aerosol microdroplet evaporation behavior, while the improved ammonia sensing performance of the PANI/Fe 3+ dendritic structure was explained using soft and hard acid-base theory. Gas sensing tests demonstrated that the PANI/Fe 3+ sensor exhibited high sensitivity to ammonia (776 % at 55 ppm), a wide detection range (547 ppb-547 ppm), as well as excellent selectivity, flexibility, and cyclic stability. These results underscore its potential for application in ambient temperature wearable fields.
研究领域:
材料科学
·
传感器技术
·
化学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nano Energy
·
2023
·
IF 17.6
Qianqian Liang,Dong Zhang,Yuchen Wu,Xiangyang Qu,Yuhang Jia,Shiyan Chen,Huaping Wang,Chengkuo Lee
As a multifunctional monitoring platform based on the human environment, fiber-based capacitive sensors are promising wearable electronic devices. However, it is of great challenge to select suitable dielectric materials and construct a bimodal capacitive sensor with excellent stretchability, high compatibility and stable sensing capability. Here, we report a bacterial cellulose (BC)@BC/carbon nanotube (CNT) helical fiber with skin-core structure, and biodegradable BC as the skin and conductive BC/CNT as the core, which exhibits tensile strength of 148 MPa and break elongation of 536 %. Two helical fibers are cross-assembled into a bimodal sensor, dedicated to detecting pressure and proximity. In the contact mode, the capacitance of the sensor increases with the increase of the pressure (0–50 N) with good sensitivity of 2.92 N −1 . In the noncontact mode, the sensor exhibits a monitoring range of 0–20 cm, and the capacitance change rate is 31 % when the finger is close to 0.5 cm. Additionally, our bimodal sensor can be used to detect the body’s omnidirectional motion and even help referees to efficient judgment in sports. In a word, our capacitive sensor provides a tremendous advantage and foundation for the development of smart fibers and the research of intelligent textiles .
研究领域:
材料科学
·
生物医学工程
·
可穿戴设备
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）